你一定要好好照顾他。

See that you take care of him.

《柯林斯英汉双解大词典》

从栅栏的另一边看很好，但你一定要好好地看看。

It's good to look on the other side of the fence, but make sure you take a good long look.

youdao

一定要好好读完每一条然后照做哦。

Make sure you read every item and follow them.

youdao

In general, less volatile stocks have done better over time than more volatile stocks, which is somewhat inconsistent with the notion of efficient markets.

一般来说，波动小的股票在长期内比波动大的股票,表现要好，一定程度上,这和金融市场有效论的观点是相悖的。

耶鲁公开课 - 金融市场课程节选

It is certainly possible, for example, that a quadratic algorithm could run faster than a linear algorithm. It depends on what the input is, it depends on, you know, what the particular cases are. So it is not the case that, on every input, a linear algorithm is always going to be better than a quadratic algorithm.

一个二次平方级复杂度的算法,当然也是可能跑的比线性复杂度算法快的,这取决于，你知道的，输入以及特定的案例，因此并不是对于每个输入,线性复杂度就一定会,比二次平方级复杂度的算法的表现要好,只是通常来说是这样的。

麻省理工公开课 - 计算机科学及编程导论课程节选